This route takes us to the most concealed, eye-catching part of the biotope: the Sakoneta and Mendata area. The trail proceeds along the very edge of the cliffs and leans out over quiet coves, walls of white rock, streams ending in waterfalls and one of the biggest tidal platforms of the Bay of Biscay. On this huge rocky platform, which crops out at low tide, the power of the sea has sculpted a geomorphological jewel, a dream-like landscape that also helps us to gain a better insight into understanding the natural heritage of the biotope